On 11/14/06, Suleiman Souhlal <ssouhlal@freebsd.org> wrote:
> I believe that the results returned will always be monotonic, as long as
> the frequency of the TSC does not change from under us (that is, without
> the kernel knowing). This is because we "synchronize" each CPU's vxtime
> with a global time source (HPET) every time we know the TSC rate changes.

Does this hold after a suspend/resume cycle? You could be resuming
with a different CPU clock than what you suspended with, and I'm not
sure anything guarantees an early enough re-sync.

  Shem
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/